For most first-time mothers, the right time to head to labor and delivery is when contractions come every 3 to 5 minutes, last 45 to 60 seconds each, and hold that pattern for at least an hour. If you’ve given birth before, the threshold is a bit more relaxed: contractions every 5 to 7 minutes lasting 45 to 60 seconds. But contraction timing isn’t the only reason to go in. Several situations, from your water breaking to sudden heavy bleeding, call for an immediate trip regardless of where you are in the contraction pattern.
Timing Your Contractions
Not every tightening in your belly is a labor contraction. Braxton Hicks contractions are irregular, usually painless, and fade when you change position or drink water. True labor contractions last at least 30 seconds, come at increasingly regular intervals, and get stronger over time rather than fading away.
The classic guideline for first-time mothers is to arrive when contractions are 3 to 5 minutes apart and each one lasts 45 to 60 seconds, sustained over about an hour. For women who have given birth before, the spacing can be slightly wider, around every 5 to 7 minutes, because labor tends to progress faster with subsequent pregnancies. Time from the start of one contraction to the start of the next, and track at least four or five in a row to confirm the pattern is consistent.
If your contractions suddenly jump from mild and irregular to intense and close together, don’t wait for the full hour of tracking. Some women, especially those who have delivered before, experience precipitous labor, where everything accelerates within a couple of hours. If you’ve had a fast labor in the past, your provider may recommend heading in earlier or even discuss an early induction.
When Your Water Breaks
If you feel a gush or a steady trickle of fluid from your vagina, head to the hospital even if you aren’t having contractions yet. Once the amniotic sac ruptures, the protective barrier around your baby is gone, and your care team will want to monitor for infection and assess how labor is progressing. Note the time it happens, the color of the fluid, and whether there’s any odor. Clear or slightly straw-colored fluid is typical. Green, brown, or foul-smelling fluid can signal that your baby has passed stool in the womb, which warrants faster evaluation.
Bleeding: Normal vs. Concerning
A small amount of blood-tinged mucus in late pregnancy is usually the “bloody show,” a sign that your cervix is starting to open. It looks jelly-like or stringy, often pink, red, or brown, and produces no more than a tablespoon or two of discharge. It can appear hours or even days before active labor begins, so on its own it doesn’t mean you need to rush in.
Heavy bleeding is a different story. If you’re soaking a pad, passing clots, or bleeding in a steady flow, that could indicate a serious complication like placental abruption, where the placenta separates from the uterine wall. Heavy vaginal bleeding at any point in pregnancy is a reason to get to the hospital immediately.
Baby’s Movement Changes
A common guideline is to expect at least 10 movements within a 2-hour window when you sit or lie down and focus on counting. But the specific number matters less than a noticeable change in your baby’s pattern. If your baby is normally active in the evening and suddenly goes quiet, or if the movements feel significantly weaker or unusually frantic compared to what you’re used to, call your provider or go in for monitoring. The hospital can run a quick test that tracks the baby’s heart rate and response to movement, giving you a clear answer within about 20 to 30 minutes.
Preterm Labor Symptoms
If you’re between 20 and 36 weeks pregnant, any sign of labor needs prompt evaluation. Preterm labor symptoms include contractions or belly tightening every 10 minutes or more often, pelvic pressure, a low dull backache that doesn’t go away, menstrual-like cramps (with or without diarrhea), and any change in vaginal discharge such as fluid leaking or spotting. Six or more contractions in a single hour before 37 weeks is a clear signal to call or go in right away. Early intervention can sometimes slow or stop preterm labor and buy critical time for the baby’s development.
Warning Signs of Preeclampsia
Preeclampsia is a blood pressure complication that can escalate quickly and become dangerous for both you and your baby. The symptoms to watch for are a severe headache that doesn’t respond to rest or hydration, blurred vision or seeing spots, temporary vision loss, light sensitivity, severe pain in the upper belly (often on the right side), and sudden shortness of breath. These symptoms can appear at any point after 20 weeks of pregnancy and even in the first few days after delivery. If you experience any of them, go to labor and delivery or the emergency room without waiting.
If You’re GBS Positive
Group B streptococcus, or GBS, is a common bacterium that about 1 in 4 pregnant women carry. It’s harmless to you but can be dangerous for a newborn during delivery. If you tested positive during the routine screening at 36 to 37 weeks, you’ll need IV antibiotics during labor. The antibiotics work best when given at least 4 hours before birth, though even 2 hours of treatment significantly reduces the bacteria. This means you may want to head in a little earlier once you’re confident labor has started, so there’s time for at least one full dose before delivery. Your provider can give you a specific plan based on how quickly your previous labors went.
What Happens When You Arrive
When you walk into labor and delivery triage, a nurse will check your vital signs, ask about your symptoms, and review your pregnancy history. You’ll typically be placed on a fetal monitor to track the baby’s heart rate and your contraction pattern. A cervical exam will measure how dilated and thinned out your cervix is. Current guidelines define active labor as beginning around 6 centimeters of dilation, so if you’re in very early labor, you may be monitored for a while and then sent home to labor more comfortably there.
Being sent home isn’t a sign that something was wrong with your decision to come in. Triage exists precisely so you can be checked and reassured. If you’re less than 6 centimeters dilated, your contractions may still be in the early (latent) phase, which can last many hours, especially for first-time mothers. The staff will give you clear instructions on what to watch for and when to return.
Quick Reference: Reasons to Go Now
- Regular, strong contractions at the intervals your provider recommended (typically 3 to 5 minutes apart for a first baby, 5 to 7 for subsequent births)
- Water breaking, whether a gush or a slow leak
- Heavy vaginal bleeding beyond a tablespoon or two of blood-tinged mucus
- Significant change in baby’s movements, either much less activity or unusually frantic movement
- Signs of preeclampsia such as severe headache, vision changes, or upper belly pain
- Preterm symptoms before 37 weeks, including six or more contractions per hour, fluid leaking, or persistent back or pelvic pain
When in doubt, call your provider’s after-hours line. They’d rather hear from you ten times unnecessarily than miss the one time it matters.